Replace InboundLaneApi::latest_received_nonce with direct storage read (#1269)
* remove inbound_latest_received_nonce
* Update relays/lib-substrate-relay/src/messages_target.rs
Co-authored-by: Adrian Catangiu <[email protected]>
* remove inbound_latest_received_nonce
* Update relays/lib-substrate-relay/src/messages_target.rs
Co-authored-by: Adrian Catangiu <[email protected]>